The Research On Application Of Micro-Class In Middle School Chemistry Teaching

With the development of information technology and network, the traditional teaching method of "the classroom and the blackboard" has been unable to fully meet the students’ learning. Micro-class, which is the same as Micro-movies and Wechat belonging to the micro-familily, has been welcomed by teachers and students. At first, micro-class is the one minute micro-video proposed by David Penrose, and it is well known to the public through the Khan Academy and TED websites. The concept of micro-class was first put forward by teacher Tiesheng Hu in China, and then a large number of scholars and teachers began to study the micro-class. Nowadays, a variety of micro academic forum has organized and a lot of micro-class website has established, and the influence of the micro lesson has spread to all over the country from Guangzhou Province.Micro-class, which has the characteristics of fragmentation, mobility and simplification, breaks the traditional teaching of the limitations of time and space and meets the needs of individual and diversified learning of students. In addition, micro-class is for a single point of knowledge to explain and has no complex curriculum system. Mico-class may improve the validity, pertinence, and directness of students’ acquisition of knowledge and it is advantageous to the student fast food type study. Therefore, if the micro class used in Chemistry Teaching in middle school, it can not only enrich the teaching content and teaching methods, but also conducive to the improvement of students’ learning efficiency and autonomous learning ability. At the same time, the process of making micro lessons for teachers is also the process of teaching research, which will promote the improvement of teachers’ professional quality and teaching quality. However, there are many difficulties in the practical application of micro class, such as the design of the micro lesson, the production of the micro lesson, the construction of the micro teaching resources and so on, and these problems seriously hindered the rapid development of micro-class. This research will investigate the application of micro teaching in the middle school chemistry teaching and the various needs of micro-class of middle school students, explore the problems for teachers encountered in the production and application in the micro lesson, and so as to promote the healthy development of the micro lesson.Firstly, the origin of the development and the current situation of the resource construction of the micro lesson in the domestic and foreign research, and the representative definition of the micro lesson are studied in this paper based on the summary of the thesis of the micro lesson. This paper also distinguishes the difference between the teachers’ micro-calss and the students’ micro-class, as well as the difference and connection between the micro lesson, the traditional multimedia teaching and the traditional classroom video recording from the contents of the records, use, and elements. Secondly, the extent of understanding, the form of demand, the use of demand and the using effect of micro-class of the students, and the cognitive level of teachers in the course of micro teaching, the overall understanding of the micro lesson, the frequency of use of micro-lesson and the restrictive factors in the development of the micro lesson, are investigated and analyzed in this paper taking junior middle school in Zhifu District of Yantai city as an example. And in the collection of teachers’ works, the two micro-classes, "What is acid" and "Inspection of gas tightness of gas production equipment", are analyzed and discussed. Thirdly, this paper puts forward some suggestions from three aspects: the making of the micro lesson, the development of the micro lesson and the application of the micro lesson on the basis of the survey data and feedback information of teachers’ work. Finally, this paper summarizes the main results of this study, and discusses the development prospects of the micro-class.